10 stoichiometry

STOICHIOMETRY How many gwaks in guacamole? “ Avocado’s” number (Lippa, 2007)

Practice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mole Ratios ,[object Object],[object Object],[object Object],5 moles Na 1 mol Cl 2 2 mol Na = 2.5 moles Cl 2

Mole-Mole Conversions ,[object Object]

Mole-Mass Conversions ,[object Object],[object Object],[object Object],[object Object],5.00 moles Na 1 mol Cl 2 70.90g Cl 2 2 mol Na 1 mol Cl 2 = 177g Cl 2

Mass-Mole ,[object Object],[object Object],[object Object],[object Object],10.0 g H 2 O 1 mol H 2 O 2 mol C 2 H 6 18.0 g H 2 O 6 mol H 2 0 = 0.185 mol C 2 H 6

Mass-Mass Conversions ,[object Object],[object Object]

Mass-Mass Conversion ,[object Object],[object Object],2.00g N 2 1 mol N 2 2 mol NH 3 17.06g NH 3 28.02g N 2 1 mol N 2 1 mol NH 3 = 2.4 g NH 3

Limiting Reactants ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Limiting Reactant ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Limiting Reactant ,[object Object],[object Object],[object Object],[object Object]

Limiting Reactant: Example ,[object Object],[object Object],[object Object],[object Object],10.0 g Al 1 mol Al 2 mol AlCl 3 133.5 g AlCl 3 27.0 g Al 2 mol Al 1 mol AlCl 3 = 49.4g AlCl 3 35.0g Cl 2 1 mol Cl 2 2 mol AlCl 3 133.5 g AlCl 3 71.0 g Cl 2 3 mol Cl 2 1 mol AlCl 3 = 43.9g AlCl 3 Limiting Reactant

LR Example Continued ,[object Object]

Limiting Reactant Practice ,[object Object]

Finding the Amount of Excess ,[object Object],[object Object]

Finding Excess Practice ,[object Object],[object Object],15.0 g I 2 1 mol I 2 2 mol K 39.1 g K 254 g I 2 1 mol I 2 1 mol K = 4.62 g K USED! 15.0 g K – 4.62 g K = 10.38 g K EXCESS Given amount of excess reactant Amount of excess reactant actually used Note that we started with the limiting reactant! Once you determine the LR, you should only start with it!

Limiting Reactant: Recap ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More Examples ,[object Object],CH 4 + 2O 2  CO 2 + 2 H 2 O Which reactant would we use to calculate the mass of water produced?

A. Limiting Reactants ,[object Object],[object Object]

10 stoichiometry

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (20)

Similar to 10 stoichiometry

Similar to 10 stoichiometry (20)

More from zehnerm2

More from zehnerm2 (20)

Recently uploaded

Recently uploaded (20)

10 stoichiometry